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Efficacy of Fresh and Used Supported Copper-Based Catalysts for Ferulic Acid Degradation by Wet Air Oxidation Process

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Title Efficacy of Fresh and Used Supported Copper-Based Catalysts for Ferulic Acid Degradation by Wet Air Oxidation Process
 
Creator YADAV, BR
GARG, A
 
Subject SOL-GEL
ALUMINA NANOCOMPOSITE
OXIDE CATALYST
 
Description Pulp mill effluents are not suitable for conventional biological treatment processes due to the presence of lignin which is found in cellulosic raw materials. The present study was undertaken to remove ferulic acid (a lignin model compound) from synthetic wastewater using a catalytic wet air oxidation (CWAO) process. The hydrothermal process was performed in the presence of three heterogeneous catalysts, namely, 60% CuO/40% CeO2, 60% CuO/40% Al2O3, and 60% CuO/40% 13X, in a temperature range of 90-160 degrees C, while the total pressure was maintained in the range of 0.55-0.8 MPa. CuO and CeO2 mixture (prepared by the sol gel peroxo method) exhibited the best performance and removed ca. 70% chemical oxygen demand (COD) from the wastewater at 120 degrees C temperature. The spent catalyst showed appreciable decline in the COD removal during reuse. The detailed results obtained from the catalyst characterization (fresh and used) and WAO studies are presented in the paper.
 
Publisher AMER CHEMICAL SOC
 
Date 2014-10-14T12:33:15Z
2014-10-14T12:33:15Z
2012
 
Type Article
 
Identifier INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 51(48)15778-15785
http://dx.doi.org/10.1021/ie301787g
http://dspace.library.iitb.ac.in/jspui/handle/100/14429
 
Language en